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GENERAL AND ADMINISTRATIVE EXPENSES (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Jan. 31, 2021
Jan. 31, 2020
Jan. 31, 2021
Jan. 31, 2020
General and Administrative Expense, Disclosure [Line Items]        
General and administrative expenses $ 1,342 $ 1,058 $ 4,306 $ 6,745
Land Development        
General and Administrative Expense, Disclosure [Line Items]        
General and administrative expenses 829 564 1,826 1,826
Homebuilding        
General and Administrative Expense, Disclosure [Line Items]        
General and administrative expenses 137 0 368 12
Corporate        
General and Administrative Expense, Disclosure [Line Items]        
General and administrative expenses $ 376 $ 494 $ 2,112 $ 4,907